2 Peter 2:19

While they promise them freedom, they themselves are the servants of corruption: for by whatever any man is overcome, he is also enslaved.

John 8:34

Jesus answered them: Verily, verily I say to you, whoever works sin is the servant of sin.

Galatians 5:13

For you have been called to freedom, brethren: only use not your freedom as an occasion for the flesh, but become servants to one another, through love.

Romans 6:12-14

Therefore, let not sin reign in your mortal body so that you obey it;

Romans 6:16-22

Know you not, that to whom you present yourselves as servants to obey, his servants you are whom you obey, whether of sin that leads to death, or of obedience that leads to righteousness?

Galatians 5:1

Stand firm, therefore, in the freedom with which Christ has made us free, and be not held fast again in the yoke of bondage.

2 Timothy 2:26

and that they may awake to sobriety out of the snare of the devil, after having been taken captive by him according to his will.

Titus 3:3

For we ourselves also were formerly foolish, disobedient, deceived, serving various desires and pleasures, living in malice and envy, hateful, and hating one an other.

1 Peter 2:16

as being free, and yet not using your freedom as a cloak for malice, but as servants of God.

2 Peter 2:20

For if, after they have escaped the pollutions of the world, through the knowledge of the Lord and Savior Jesus Christ, they are again entangled in these, and overcome by them, the last state of such is worse than the first.

Treasury of Scripture Knowledge

Summary

While they promise them liberty, they themselves are the servants of corruption: for of whom a man is overcome, of the same is he brought in bondage.

They themselves

General references

Bible References

They promise

Galatians 5:1
Stand firm, therefore, in the freedom with which Christ has made us free, and be not held fast again in the yoke of bondage.
1 Peter 2:16
as being free, and yet not using your freedom as a cloak for malice, but as servants of God.

They themselves

John 8:34
Jesus answered them: Verily, verily I say to you, whoever works sin is the servant of sin.
Romans 6:12
Therefore, let not sin reign in your mortal body so that you obey it;
Titus 3:3
For we ourselves also were formerly foolish, disobedient, deceived, serving various desires and pleasures, living in malice and envy, hateful, and hating one an other.

Overcome

2 Peter 2:20
For if, after they have escaped the pollutions of the world, through the knowledge of the Lord and Savior Jesus Christ, they are again entangled in these, and overcome by them, the last state of such is worse than the first.
2 Timothy 2:26
and that they may awake to sobriety out of the snare of the devil, after having been taken captive by him according to his will.

General references

Luke 14:30
saying, This man began to build, and was not able to finish.
Luke 17:32
Remember Lot's wife.